body {
    background-color: #0a0a0a;
    color: white;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.navbar {
    background: linear-gradient(135deg, rgba(30, 60, 114, 0.95) 0%, rgba(0, 0, 0, 0.95) 100%);
    backdrop-filter: blur(10px);
    border-bottom: 2px solid #00f5ff;
}

.navbar-brand {
    font-weight: bold;
    color: #00f5ff !important;
}

.nav-link {
    color: rgba(255, 255, 255, 0.8) !important;
    transition: all 0.3s ease;
}

.nav-link:hover {
    color: #00f5ff !important;
}

.main-content {
    padding-top: 100px;
    min-height: 100vh;
}

.page-header {
    text-align: center;
    margin-bottom: 3rem;
}

.page-title {
    font-size: 3rem;
    font-weight: bold;
    color: #00f5ff;
    margin-bottom: 1rem;
}

.search-filter {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 25px;
    margin-bottom: 3rem;
    backdrop-filter: blur(10px);
}

.file-card {
    background: linear-gradient(135deg, rgba(0, 245, 255, 0.1) 0%, rgba(30, 60, 114, 0.1) 100%);
    border-radius: 15px;
    padding: 25px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 245, 255, 0.2);
    margin-bottom: 30px;
    height: 100%;
}

.file-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 245, 255, 0.2);
}

.file-icon {
    font-size: 4rem;
    color: #00f5ff;
    margin-bottom: 1rem;
}

.file-title {
    font-size: 1.3rem;
    font-weight: bold;
    margin-bottom: 1rem;
    color: white;
}

.file-description {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    line-height: 1.5;
}

.file-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
}

.file-category {
    background: linear-gradient(135deg, #00f5ff 0%, #0099cc 100%);
    color: white;
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    text-decoration: none;
    display: inline-block;
    margin-bottom: 1rem;
}

.file-category:hover {
    color: white;
    transform: translateY(-2px);
}

.download-btn {
    background: linear-gradient(135deg, #00f5ff 0%, #0099cc 100%);
    border: none;
    color: white;
    padding: 12px 30px;
    border-radius: 25px;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    font-weight: bold;
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 245, 255, 0.4);
    color: white;
}

.pagination {
    justify-content: center;
    margin-top: 3rem;
}

.page-link {
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
}

.page-link:hover {
    background-color: #00f5ff;
    border-color: #00f5ff;
    color: white;
}

.page-item.active .page-link {
    background-color: #00f5ff;
    border-color: #00f5ff;
}

.btn-primary {
    background: linear-gradient(135deg, #00f5ff 0%, #0099cc 100%);
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #0099cc 0%, #00f5ff 100%);
}

.form-control {
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
}

.form-control:focus {
    background-color: rgba(255, 255, 255, 0.15);
    border-color: #00f5ff;
    color: white;
    box-shadow: 0 0 0 0.2rem rgba(0, 245, 255, 0.25);
}

.form-control::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.form-select {
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
}

.form-select:focus {
    background-color: rgba(255, 255, 255, 0.15);
    border-color: #00f5ff;
    color: white;
    box-shadow: 0 0 0 0.2rem rgba(0, 245, 255, 0.25);
}

.form-select option {
    background-color: #1a1a1a;
    color: white;
}

.stats-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 20px;
    text-align: center;
    margin-bottom: 2rem;
}

.stats-number {
    font-size: 2rem;
    font-weight: bold;
    color: #00f5ff;
}

.stats-label {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}